"Our revised PC forecast now calls for 2013 unit declines of 3.8%, down from our prior forecast of 0.5%," said analyst Bill Shope. "This assumes a 1H2013 sequential unit decline of 9.7% (versus our prior forecast of 6.4% and the three-year historical average of 6.8%), and we now assume a 2H2013 sequential increase of 11.8% (versus 11.5% previously and the three-year historical average of 7.5%)."

"We expect a challenging environment in many of Dell's core markets to continue to cloud the company's visibility and pressure consensus expectations. For FY2014, we now expect revenues and EPS of $54.35 billion and $1.49, versus $55.45 billion and $1.55 previously," added the analyst.